Height adjustable workstation



FIG. 1 is a perspective view of a height adjustment workstation showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a right side elevation view thereof.

The broken line portions of the drawing figures are included to show portions of the height adjustment workstation that form no part of the claimed design. 

CLAIM I claim the ornamental design for a height adjustment workstation, as shown and described. 